condition mean min max Sterile Frond 6.596383333333333 5.19518 8.86179 Fertile Frond 8.975543333333333 8.2341 9.38531 Young Stem with Root 12.33777 9.70531 14.5976 Mature Stem with Root 15.2766 12.8681 19.0198 Root 16.689600000000002 13.8443 18.8746